你的規格請重新說明一下好嗎，具體的規格，要不別人無法幫到你。謝謝

这个线的质量比较差，线上面没有型号，就是有24股，胶料是黑色的。

FF-192    4*0.75

这种规格应该算是小电缆，对于高温线目前没有国标可以参考，生产厂大多是企标，型号也不相同。

我知道有一种是KTT-500的应该可能适合。

有一种云母电缆也可以满足要求的

AWM4477/(13AWG*4C)符合你所需要的纯种，因为4根0.75的铜线的相当截面积转换为AWG大概就是：13AWG，而根据AWM4477的STYLE PAGE，这绝对可以符合你据说线种的要求
Subj. 758 Section 4 Page 4477A Issued: April 5, 2000
Revised: Feb. 5, 2001

UNDERWRITERS LABORATORIES, INC. APPLIANCE WIRING MATERIAL
Subj. 758 Section 4 Page 4477 Issued: April 5, 2000
Revised: Feb. 6, 2001
Style 4477 Multi-Conductor Cable.
______________________________________________________________________________
Rating 90°C - 300°C.
______________________________________________________________________________
*Conductors No. 30-9 AWG solid or stranded, tinned or bare copper.
______________________________________________________________________________
Insulation Labeled and/or complying with manufacturer AWM Procedure and
having a minimum rating of 90°C - 300°C.
______________________________________________________________________________
Conductor Two or more individually insulated conductors or groups of
Assembly insulated conductors cabled together. If more than one group
is used, groups shall also be twisted together. The length
of lay of the twisted conductors or groups is not specified.
A barrier layer, if employed, may be a fibrous wrap serving,
or braid; paper; nylon; oriented polyethylene terephthalate;
or a thermoplastic-tape wrap.
______________________________________________________________________________
*Shielding (Optional).
______________________________________________________________________________
Jacket CP Rubber Class 24
Diameter of Average Minimum
Cable Under Thickness Thickness at
Jacket in in Mils - Any Point
Inches Minimum in Mils
0.425 or less 45 36
0.426 - 0.700 60 48
0.701 - 1.500 78 62
1.501 - 2.500 109 88
2.501 and larger 140 112
______________________________________________________________________________
*Standard Appliance Wiring Material UL 758.
______________________________________________________________________________
Instructions Detailed examination of the cable assembly and jacket wall.
to UL Tensile strength and elongation of the jacket, Class 24,
Representative Unaged.
The designations of all styles of individual conductors used
in making up the cable assembly shall be available.
____________________________________________________________________________
UL (4) Detailed examination
Counter-Check (4) Tensile strength and elongation of jacket, Class 24
*Program (4) Cold Bend on completed cable.
* (2) Vertical Flame Test on completed cable.
______________________________________________________________________________
*Marking General.
______________________________________________________________________________
Use Internal Wiring or External Interconnection of Electronic
Equipment.